A．使用防病毒软件 B．使用日志审计系统 C．使用入侵检测系统 D．使用防火墙防止

与癌症发生相关的饮食因素是（）

A.蛋白质

B.脂肪

C.维生素

D.膳食纤维

E.微量元素

下列各句中，没有语病的一项是(　　)

A．中国接连在空间对接以及深海探潜上取得重大突破，不但是中国科技发展史的一个里程碑，而且显示出大国崛起的战略眼光，体现出大国应有的视野及胸怀。

B．省政府已明确指出，廉租房可以在经济适用住房中配建，也可以在普通商品住房小区中配建，以防止低收入家庭远离城区被边缘化的现象。

C．饮用菊花茶可以缓解头昏脑涨及用眼过度导致的眼睛干涩等症状，这是因为菊花有清肝明目、祛毒散热的功效的原因。

D．语文是各门学科的基础，学习自然科学如果不掌握语文这门工具，就不可能正确理解其他学科的题意、概念和原理，不可能有条理的、严密的思维习惯。

铁直线线路的标准轨距为（）。

Listening to a radio broadcast in a foreign language is difficult for many of us. We may have studied the language for several years, and are able to read it, perhaps even write in it. But listening and understanding the spoken language require special skills. Some people have a natural ability that helps them to learn a language quickly, while others must study for a long time. Everyone, however, can improve his or her listening skills with practice.

We are good listeners in our own language because we have had years of practice. We understand the grammar and the language. We know what to expect a person to say to us in almost any situation. We have been in similar situations many times, and we have heard it all before. We can understand it, even if we do not listen carefully.

But this is not true with a foreign language. We must listen with our full attention. And we must try not to let the cultural style of our language affect our understanding of the foreign language. Listening to a foreign language broadcast is easier if we know something about it. There are clues that can help us. One clue is the time of a day. Morning programs usually contain many short items of news, information or entertainment. The items are short because most of us are getting ready to go to work in the morning. Often we do not have time to listen to long programs. Evening programs are different. There is time for more details about the subjects discussed.

We can get a clue about the program from the music at the beginning, but we must be familiar with the music of the foreign culture. The kind of music—serious and slow, or fast and light—can tell us what kind of program to expect. The name of the program can give us good information about what it will contain.

Another good clue is the broadcaster. The more we listen to the same person, the easier it will be to understand him. His speaking style will become familiar to us. Further, the broadcaster provides clues to the organization of the broadcast at the beginning of the program. The broadcaster usually gives us the highlights of the program to prepare us for the details that will follow.

小题1:We are good listeners in our own language because ________.

A．we have a natural ability of learning language

B．our own language is much easier

C．we listen to our own language more carefully

D．we have practiced it for years小题2: If you don’t have enough time, you can listen to ________.

A．evening programs

B．programs with soft music

C．morning programs

D．familiar programs小题3:You can know the information of the program according to ________.

A．its music

B．the broadcaster

C．its name

D．the time of the program

A child, age 5, with an IQ of 65 is admitted to the hospital for evaluation. When planning care, the nurse should keep in mind that this child is

A．within the lower range of normal intelligence.

B．mildly retarded but educable.

C．moderately retarded but trainable.

D．completely dependent on others for care.